3-Phenylquinoxalin-2(1H)-one

3-苯基喹噁啉-2(1H)-酮

Also known as: 2(1H)-Quinoxalinone, 3-phenyl-, 3-Phenyl-1,2-dihydroquinoxalin-2-one, 3-Phenyl-1H-quinoxalin-2-one, 3-Phenyl-2-quinoxalone, 3-Phenylquinoxalin-2-ol, 3-Phenylquinoxalin-2-one

3-Phenylquinoxalin-2(1H)-one (CAS 1504-78-5) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C14H10N2O and a molecular weight of 222.24200 g/mol. It is also known as 2(1H)-Quinoxalinone, 3-phenyl-, 3-Phenyl-1,2-dihydroquinoxalin-2-one and 3-Phenyl-1H-quinoxalin-2-one. Key properties include a boiling point of 426.2ºC at 760mmHg, a density of 1.24g/cm3 and a flash point of 211.5ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1504-78-5
Jingsj CID
J-1505992-1
Molecular Formula
C14H10N2O
Chinese Name
3-苯基喹噁啉-2(1H)-酮
Molecular Weight
222.24200 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point426.2ºC at 760mmHg
Density1.24g/cm3
Flash Point211.5ºC

Frequently Asked Questions

What is the CAS number of 3-Phenylquinoxalin-2(1H)-one?

The CAS number of 3-Phenylquinoxalin-2(1H)-one is 1504-78-5.

What are the molecular formula and molecular weight of 3-Phenylquinoxalin-2(1H)-one?

3-Phenylquinoxalin-2(1H)-one has molecular formula C14H10N2O and molecular weight 222.24200 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "3-Phenylquinoxalin-2(1H)-one (CAS 1504-78-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1505992-1 (accessed 2026-10-25).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.